F3726, F3211, F3174, R5135, R3816-HP Firewalls and UTM Devices Access Control Configuration Guide-6PW100

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220BConfiguring portal server detection and portal user information
synchronization
404BNetwork requirements
As shown in 691HFigure 135, a host is directly connected to a firewall (the access device) and must pass portal
authentication before it can access the Internet. A RADIUS server serves as the
authentication/accounting server.
Detailed requirements are as follows:
• The host is assigned with a public network IP address either manually or through DHCP. Before
passing portal authentication, the host can access only the portal server. After passing portal
authentication, the host can access the Internet.
• The access device (the firewall) can detect whether the portal server is reachable and send trap
messages upon state changes. When the portal server is unreachable due to, for example, a
connection failure, network device failure, or portal server failure, the access device can disable
portal authentication, allowing users to access the Internet without authentication.
• The access device can synchronize portal user information with the portal server periodically.
Figure 135 Network diagram
405BConfiguration considerations
1. Configure the portal server and enable portal server heartbeat function and the portal user
heartbeat function.
2. Configure the RADIUS server to implement authentication and accounting.
3. Configure direct portal authentication on interface GigabitEthernet 0/2, which is directly
connected with the host.
4. Configure the portal server detection function on the access device, so that the access device can
detect the status of the portal server by cooperating with the portal server heartbeat function.
5. Configure the portal user information synchronization function, so that the access device can
synchronize portal user information with the portal server by cooperating with the portal user
heartbeat function.
406BConfiguration prerequisites
• Configure IP addresses for the host, firewall, and servers as shown in 692HFigure 135 and make sure they
can reach each other.
• Configure the RADIUS server properly to provide authentication and accounting functions for users.